影响甲A男排“自由人”防守能力因素的研究

以参加1999年漳州冬训及全国男排锦标赛的甲A男排的11名“自由人”作为研究对象，采用文献资料法、专家咨询法、问卷调查法、观察统计法、体育测量法、数理统计法，对“自由人”的防守能力与影响指标之间的内在联系展开系统、深入的研究，揭示了影响因素与防守能力之间的动态发展关系。研究结果表明：在众多的影响因素中，防守技术水平、神经类型、手臂肌肉用力感觉、选择反应时、脚反应时、操作思维、立体知觉这7个因素是影响我国甲A男排“自由人”防守能力的主要因素。

Research on the Main Factors of Affecting Their Defending Abilities of the First A Man＇s Volleyball Teams in China

Based on document data,expert consultations,questionnaire observation and statistical method in the spot,physical measuring method,mathematical statistics,the eleven liberal defenders of the First A man's volleyball teams in China are studied.A system and through research is conducted between the defending ability and the inherent connection affecting indicatrix to reveal the development relationship of dynamic quantization between the affecting indicatrix and the defending ability and to establish the match pattern to the principle of gradual regression.The result indicate that nerve type,level of defending technique,gluteus energize sensation,foot reaction time,choice reaction time,operation thinking,three dimensional sentiency are the main factors affecting the liberal defendrers' defending ability among the many affecting factors in the First A man's volleyball teams in China and benefit to the coaches for choosing and training liberal defenders.